DE3062080D1 - Process and apparatus for protecting a digital transmission trunk - Google Patents

Process and apparatus for protecting a digital transmission trunk

Info

Publication number
DE3062080D1
DE3062080D1 DE8080401703T DE3062080T DE3062080D1 DE 3062080 D1 DE3062080 D1 DE 3062080D1 DE 8080401703 T DE8080401703 T DE 8080401703T DE 3062080 T DE3062080 T DE 3062080T DE 3062080 D1 DE3062080 D1 DE 3062080D1
Authority
DE
Germany
Prior art keywords
protecting
digital transmission
transmission trunk
trunk
digital
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8080401703T
Other languages
German (de)
English (en)
Inventor
Gilbert L Bargeton
Claude P Beynie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Anonyme de Telecommunications SAT
Original Assignee
Societe Anonyme de Telecommunications SAT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe Anonyme de Telecommunications SAT filed Critical Societe Anonyme de Telecommunications SAT
Application granted granted Critical
Publication of DE3062080D1 publication Critical patent/DE3062080D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
DE8080401703T 1980-01-11 1980-11-28 Process and apparatus for protecting a digital transmission trunk Expired DE3062080D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8000621A FR2473819B1 (fr) 1980-01-11 1980-01-11 Procede et systeme de securisation d'une artere de transmission numerique

Publications (1)

Publication Number Publication Date
DE3062080D1 true DE3062080D1 (en) 1983-03-24

Family

ID=9237470

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080401703T Expired DE3062080D1 (en) 1980-01-11 1980-11-28 Process and apparatus for protecting a digital transmission trunk

Country Status (4)

Country Link
US (1) US4365247A (fr)
EP (1) EP0032327B1 (fr)
DE (1) DE3062080D1 (fr)
FR (1) FR2473819B1 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1194131B (it) * 1981-12-23 1988-09-14 Italtel Spa Disposizione circuitale atta a collegare una pluralita' di coppie di elaboratori ad un ulteriore coppia di elaboratori di gerarchia superiore
US4825438A (en) * 1982-03-08 1989-04-25 Unisys Corporation Bus error detection employing parity verification
DE3242958A1 (de) * 1982-11-20 1984-05-24 Philips Kommunikations Industrie AG, 8500 Nürnberg Nebenstellenanlage
US4514844A (en) * 1983-06-22 1985-04-30 Gte Automatic Electric Inc. Duplex digital span transmission circuit arrangement
EP0140712B1 (fr) * 1983-10-31 1989-08-23 Beale International Technology Limited Système et procédé de transmission de données
EP0142138B1 (fr) * 1983-11-11 1988-10-26 Fujitsu Limited Système de commutation sur réserve pour une ligne de transmission de porteuse
FR2574237B1 (fr) * 1984-11-30 1992-05-22 Telecommunications Sa Systeme de commutation pour reseau de transmission numerique
JPH0752876B2 (ja) * 1985-07-20 1995-06-05 ソニー株式会社 内部バス式デイジタル装置
DE3526020A1 (de) * 1985-07-20 1987-01-22 Philips Patentverwaltung Einrichtungen zur erzeugung der kennzeichnung von unbeschalteten rbertragungsstrecken eines digitalen rbertragungssystems
US4646286A (en) * 1985-07-30 1987-02-24 Northern Telecom Limited Communications system with protection switching and channel identities
JPS6469127A (en) * 1987-09-10 1989-03-15 Fujitsu Ltd High speed switching system
JPH084257B2 (ja) * 1987-10-02 1996-01-17 日本電気株式会社 （１＋ｎ）ヒットレス回線切替装置
US4817092A (en) * 1987-10-05 1989-03-28 International Business Machines Threshold alarms for processing errors in a multiplex communications system
US4881230A (en) * 1987-10-05 1989-11-14 Ibm Corporation Expert system for processing errors in a multiplex communications system
US4873687A (en) * 1987-10-05 1989-10-10 Ibm Corporation Failing resource manager in a multiplex communication system
CA1321001C (fr) * 1988-02-04 1993-08-03 Nec Corporation Systeme de commutation de lignes de transmission
JPH01215129A (ja) * 1988-02-23 1989-08-29 Fujitsu Ltd １：１回線切替システム
US5091847A (en) * 1989-10-03 1992-02-25 Grumman Aerospace Corporation Fault tolerant interface station
JP2513919B2 (ja) * 1990-09-05 1996-07-10 株式会社日立製作所 構成制御装置の再構成機能停止防止方式
US5161186A (en) * 1991-09-06 1992-11-03 International Business Machines Corporation System for secure and private communication in a triple-connected network
US5289458A (en) * 1992-03-30 1994-02-22 Intel Corporation Apparatus for accomplishing autoport selection
US5544197A (en) * 1994-04-07 1996-08-06 Harvey Mudd College Cutover apparatus and methods for switching a signal between two transmission media
JP2943677B2 (ja) * 1995-12-06 1999-08-30 日本電気株式会社 非同期転送モード通信方式における回線迂回制御システム
US5729527A (en) 1995-12-29 1998-03-17 Tellabs Operations, Inc. Fault management in a multichannel transmission system
US6175416B1 (en) * 1996-08-06 2001-01-16 Brown University Research Foundation Optical stress generator and detector
KR100297590B1 (ko) * 1998-09-18 2001-08-07 서평원 교환기에서 스위치 네트워크의 경로 시험 방법
US7099578B1 (en) 1999-12-16 2006-08-29 Tellabs Operations Inc. 1:N protection in an optical terminal
US9922686B2 (en) 2016-05-19 2018-03-20 Micron Technology, Inc. Apparatuses and methods for performing intra-module databus inversion operations
US10146719B2 (en) * 2017-03-24 2018-12-04 Micron Technology, Inc. Semiconductor layered device with data bus
US10664432B2 (en) 2018-05-23 2020-05-26 Micron Technology, Inc. Semiconductor layered device with data bus inversion
US10964702B2 (en) 2018-10-17 2021-03-30 Micron Technology, Inc. Semiconductor device with first-in-first-out circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864533A (en) * 1973-06-01 1975-02-04 Vidar Corp Automatic line transfer system and method for a communications system
US4264893A (en) * 1974-01-25 1981-04-28 Honeywell Inc. Data communication system
JPS5248416A (en) * 1975-07-23 1977-04-18 Johnson Controls Inc Data communication system
US4009469A (en) * 1975-12-19 1977-02-22 Ibm Corporation Loop communications system with method and apparatus for switch to secondary loop
US4068105A (en) * 1976-05-28 1978-01-10 American District Telegraph Company Central station system transmission apparatus

Also Published As

Publication number Publication date
EP0032327A3 (en) 1981-08-05
EP0032327A2 (fr) 1981-07-22
EP0032327B1 (fr) 1983-02-16
FR2473819B1 (fr) 1985-12-13
FR2473819A1 (fr) 1981-07-17
US4365247A (en) 1982-12-21

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee